Helicity Induction and Amplification in an Oligo(p‐phenylenevinylene) Assembly through Hydrogen‐Bonded Chiral Acids

Regulating the twist: Tunable supramolecular chirality is induced in an achiral helical self-assembly (P, M; see picture) by hydrogen-bonded chiral guest molecules (yellow and purple rods). Chiroptical probing of the π-conjugated chromophore reveals the mechanistic pathways of chiral induction. “Majority rules” and “sergeant and soldiers” experiments give insight into the chiral amplification in the stacks.